[Mimedefang] Greylisting

[Kenneth Porter]

--On Wednesday, December 14, 2005 9:37 PM -0500 "David F. Skoll" 
<dfs at roaringpenguin.com> wrote:

> Our (commercial) implementation of greylisting notes when a host
> makes it past the greylist hurdle.  Once that happens, we don't greylist
> that host for 40 days.  It's a simple trick that greatly reduces the
> annoyance of greylisting delays without materially reducing the
> effectiveness of greylisting.  I'm not sure if any of the free
> greylisting implementations do this (but hey... here's a project for
> someone...)

While I can see how that helps a large userbase, I don't see how it would 
help a small company server. Perhaps a distributed greylist DB? Sort of 
like a DNSBL but with white-listing. MD could store the successful entries 
in a zone and we could publish our zones for others to use.